News tagged with southern hemisphere

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Solar cycle update: Twin peaks?

Something unexpected is happening on the sun. 2013 is supposed to be the year of Solar Max, the peak of the 11-year sunspot cycle. Yet 2013 has arrived and solar activity is relatively low. Sunspot numbers ...

Mar 04, 2013
4.2 / 5 (11) 28 | with audio podcast

Is the ozone layer on the road to recovery?

(Phys.org)—Satellites show that the recent ozone hole over Antarctica was the smallest seen in the past decade. Long-term observations also reveal that Earth's ozone has been strengthening following international ...

Feb 10, 2013
4.4 / 5 (14) 8 | with audio podcast

Massive stellar winds are made of tiny pieces

(Phys.org)—ESA's XMM-Newton space observatory has completed the most detailed study ever of the fierce wind from a giant star, showing for the first time that it is not a uniform breeze but is fragmented ...

Feb 05, 2013
4.2 / 5 (10) 2 | with audio podcast

Astronomers measure nearby Universe's 'cosmic fog'

Researchers from the Laboratoire Leprince-Ringuet (CNRS/École Polytechnique) have carried out the first measurement of the intensity of the diffuse extragalactic background light in the nearby Universe, ...

Jan 20, 2013
4.7 / 5 (14) 2 | with audio podcast

Nerve centre at heart of Australian fires

As dozens of unpredictable bushfires break out in Australia's extreme heat, military-style operations are in full swing at a "nerve centre" that harnesses state-of-the-art technology allied to the power of ...

Jan 13, 2013
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Cassini suggests icing on a Titan lake

(Phys.org)—It's not exactly icing on a cake, but it could be icing on a lake. A new paper by scientists on NASA's Cassini mission finds that blocks of hydrocarbon ice might decorate the surface of existing ...

Jan 08, 2013
4.9 / 5 (10) 6 | with audio podcast